So little source, so much sink: requirements for afterdepolarizations to propagate in tissue

Y Xie, D Sato, A Garfinkel, Z Qu, JN Weiss - Biophysical journal, 2010 - cell.com
How early (EADs) and delayed afterdepolarizations (DADs) overcome electrotonic source-
sink mismatches in tissue to trigger premature ventricular complexes remains incompletely …

Delayed afterdepolarizations generate both triggers and a vulnerable substrate promoting reentry in cardiac tissue

MB Liu, E de Lange, A Garfinkel, JN Weiss, Z Qu - Heart rhythm, 2015 - Elsevier
Background Delayed afterdepolarizations (DADs) have been well characterized as
arrhythmia triggers, but their role in generating a tissue substrate vulnerable to reentry is not …

Irregularly appearing early afterdepolarizations in cardiac myocytes: random fluctuations or dynamical chaos?

D Sato, LH Xie, TP Nguyen, JN Weiss, Z Qu - Biophysical journal, 2010 - cell.com
Irregularly occurring early afterdepolarizations (EADs) in cardiac myocytes are traditionally
hypothesized to be caused by random ion channel fluctuations. In this study, we combined …

Synchronization of chaotic early afterdepolarizations in the genesis of cardiac arrhythmias

D Sato, LH Xie, AA Sovari, DX Tran… - Proceedings of the …, 2009 - National Acad Sciences
The synchronization of coupled oscillators plays an important role in many biological
systems, including the heart. In heart diseases, cardiac myocytes can exhibit abnormal …

Early afterdepolarizations in cardiac myocytes: beyond reduced repolarization reserve

Z Qu, LH Xie, R Olcese, HS Karagueuzian… - Cardiovascular …, 2013 - academic.oup.com
Early afterdepolarizations (EADs) are secondary voltage depolarizations during the
repolarizing phase of the action potential, which can cause lethal cardiac arrhythmias. The …

Early afterdepolarizations in cardiac myocytes: mechanism and rate dependence

J Zeng, Y Rudy - Biophysical journal, 1995 - cell.com
A model of the cardiac ventricular action potential that accounts for dynamic changes in ionic
concentrations was used to study the mechanism, characteristics, and rate dependence of …

Revisiting the ionic mechanisms of early afterdepolarizations in cardiomyocytes: predominant by Ca waves or Ca currents?

Z Zhao, H Wen, N Fefelova, C Allen… - American Journal …, 2012 - journals.physiology.org
Early afterdepolarizations (EADs) have been implicated in severe cardiac arrhythmias and
sudden cardiac deaths. However, the mechanism (s) for EAD genesis, especially regarding …

Calcium-voltage coupling in the genesis of early and delayed afterdepolarizations in cardiac myocytes

Z Song, CY Ko, M Nivala, JN Weiss, Z Qu - Biophysical journal, 2015 - cell.com
Early afterdepolarizations (EADs) and delayed afterdepolarizations (DADs) are voltage
oscillations known to cause cardiac arrhythmias. EADs are mainly driven by voltage …

[HTML][HTML] Early afterdepolarizations promote transmural reentry in ischemic human ventricles with reduced repolarization reserve

S Dutta, A Mincholé, E Zacur, TA Quinn… - Progress in biophysics …, 2016 - Elsevier
Aims Acute ischemia is a major cause of sudden arrhythmic death, further promoted by
potassium current blockers. Macro-reentry around the ischemic region and early …

Early afterdepolarizations and cardiac arrhythmias

JN Weiss, A Garfinkel, HS Karagueuzian, PS Chen… - Heart rhythm, 2010 - Elsevier
Early afterdepolarizations (EADs) are an important cause of lethal ventricular arrhythmias in
long QT syndromes and heart failure, but the mechanisms by which EADs at the cellular …